If it is your first time to apply for a loan certificate, the issuing unit is where you need to sign the loan, such as township units and street offices. Anyway, it is the relevant unit. Take the money there and just fill it out when you come back. You can also export the document first and fill it later. As for the students who have a successful record of agency, the review is not so strict when applying again, just need the signature of the agent, so there is no need to sign in the relevant departments.